| 1 | /* |
| 2 | * Glide64 - Glide video plugin for Nintendo 64 emulators. |
| 3 | * Copyright (c) 2002 Dave2001 |
| 4 | * Copyright (c) 2003-2009 Sergey 'Gonetz' Lipski |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | //**************************************************************** |
| 22 | // |
| 23 | // Glide64 - Glide Plugin for Nintendo 64 emulators |
| 24 | // Project started on December 29th, 2001 |
| 25 | // |
| 26 | // Authors: |
| 27 | // Dave2001, original author, founded the project in 2001, left it in 2002 |
| 28 | // Gugaman, joined the project in 2002, left it in 2002 |
| 29 | // Sergey 'Gonetz' Lipski, joined the project in 2002, main author since fall of 2002 |
| 30 | // Hiroshi 'KoolSmoky' Morii, joined the project in 2007 |
| 31 | // |
| 32 | //**************************************************************** |
| 33 | // |
| 34 | // To modify Glide64: |
| 35 | // * Write your name and (optional)email, commented by your work, so I know who did it, and so that you can find which parts you modified when it comes time to send it to me. |
| 36 | // * Do NOT send me the whole project or file that you modified. Take out your modified code sections, and tell me where to put them. If people sent the whole thing, I would have many different versions, but no idea how to combine them all. |
| 37 | // |
| 38 | //**************************************************************** |
| 39 | |
| 40 | // |
| 41 | // vertex - loads vertices |
| 42 | // |
| 43 | |
| 44 | static void uc3_vertex() |
| 45 | { |
| 46 | Check_FrameSkip; |
| 47 | |
| 48 | int v0 = ((rdp.cmd0 >> 16) & 0xFF)/5; // Current vertex |
| 49 | int n = (wxUint16)((rdp.cmd0&0xFFFF) + 1)/0x210; // Number to copy |
| 50 | |
| 51 | if (v0 >= 32) |
| 52 | v0 = 31; |
| 53 | |
| 54 | if ((v0 + n) > 32) |
| 55 | n = 32 - v0; |
| 56 | |
| 57 | rsp_vertex(v0, n); |
| 58 | } |
| 59 | |
| 60 | // |
| 61 | // tri1 - renders a triangle |
| 62 | // |
| 63 | |
| 64 | static void uc3_tri1() |
| 65 | { |
| 66 | Check_FrameSkip; |
| 67 | |
| 68 | FRDP("uc3:tri1 #%d - %d, %d, %d - %08lx - %08lx\n", rdp.tri_n, |
| 69 | ((rdp.cmd1 >> 16) & 0xFF)/5, |
| 70 | ((rdp.cmd1 >> 8) & 0xFF)/5, |
| 71 | ((rdp.cmd1 ) & 0xFF)/5, rdp.cmd0, rdp.cmd1); |
| 72 | |
| 73 | VERTEX *v[3] = { |
| 74 | &rdp.vtx[((rdp.cmd1 >> 16) & 0xFF)/5], |
| 75 | &rdp.vtx[((rdp.cmd1 >> 8) & 0xFF)/5], |
| 76 | &rdp.vtx[(rdp.cmd1 & 0xFF)/5] |
| 77 | }; |
| 78 | |
| 79 | rsp_tri1(v); |
| 80 | } |
| 81 | |
| 82 | static void uc3_tri2 () |
| 83 | { |
| 84 | Check_FrameSkip; |
| 85 | |
| 86 | FRDP("uc3:tri2 #%d, #%d - %d, %d, %d - %d, %d, %d\n", rdp.tri_n, rdp.tri_n+1, |
| 87 | ((rdp.cmd0 >> 16) & 0xFF)/5, |
| 88 | ((rdp.cmd0 >> 8) & 0xFF)/5, |
| 89 | ((rdp.cmd0 ) & 0xFF)/5, |
| 90 | ((rdp.cmd1 >> 16) & 0xFF)/5, |
| 91 | ((rdp.cmd1 >> 8) & 0xFF)/5, |
| 92 | ((rdp.cmd1 ) & 0xFF)/5); |
| 93 | |
| 94 | VERTEX *v[6] = { |
| 95 | &rdp.vtx[((rdp.cmd0 >> 16) & 0xFF)/5], |
| 96 | &rdp.vtx[((rdp.cmd0 >> 8) & 0xFF)/5], |
| 97 | &rdp.vtx[(rdp.cmd0 & 0xFF)/5], |
| 98 | &rdp.vtx[((rdp.cmd1 >> 16) & 0xFF)/5], |
| 99 | &rdp.vtx[((rdp.cmd1 >> 8) & 0xFF)/5], |
| 100 | &rdp.vtx[(rdp.cmd1 & 0xFF)/5] |
| 101 | }; |
| 102 | |
| 103 | rsp_tri2(v); |
| 104 | } |
| 105 | |
| 106 | static void uc3_quad3d() |
| 107 | { |
| 108 | Check_FrameSkip; |
| 109 | |
| 110 | FRDP("uc3:quad3d #%d, #%d\n", rdp.tri_n, rdp.tri_n+1); |
| 111 | |
| 112 | VERTEX *v[6] = { |
| 113 | &rdp.vtx[((rdp.cmd1 >> 24) & 0xFF)/5], |
| 114 | &rdp.vtx[((rdp.cmd1 >> 16) & 0xFF)/5], |
| 115 | &rdp.vtx[((rdp.cmd1 >> 8) & 0xFF)/5], |
| 116 | &rdp.vtx[(rdp.cmd1 & 0xFF)/5], |
| 117 | &rdp.vtx[((rdp.cmd1 >> 24) & 0xFF)/5], |
| 118 | &rdp.vtx[((rdp.cmd1 >> 8) & 0xFF)/5] |
| 119 | }; |
| 120 | |
| 121 | rsp_tri2(v); |
| 122 | } |